Bug#1072524: systemd: On a debian trixie, after upgrading systemd to latest version the system fails to reboot.

[Christophe Trophime]

Package: systemd
Version: 256~rc3
Severity: important
X-Debbugs-Cc: christophe.trophime at lncmi.cnrs.fr

Dear Maintainer,

After upgrading systemd the machine does not reboot.
The error message says:

systemd freezing execution
refusing to run under cgroup v1, SYSTEMD_CGROUP_ENABLE_LEGACY_FORCE=1
shall be passed to kernel command line


As far as I have understood cgroup v1 is no longer supported.
So I think I have 2 choices:
* add the variable to the kernel starting command line,
* disable cgroup v1

The point is that I cannot figure out how to do?
Cannot find how to set the variable, nor how to eventually disable
cgroup v1?

Which packages may use the cgroup v1 features?
I'm using container tools like docker (nvidia-container), singularity and charliecloud

Thanks for your help
Best
C

PS: cannot provide any additional info about my debian trixie host.